*****
All warehouses have time standards. If they didn't, you'd have workers standing around in the aisles all day bullshitting with each other instead of working.
The standards at Safeway when I worked there were measured in hundredths of a minute and it wasn't easy. When I first started out there, I couldn't 'make my minutes' for the first 4 months I worked there to save my life - I'd run my orders at 91, 92% all day long but I just couldn't hit that 100% mark. I came t-h-a-t close to getting fired because of it, then one day, it just clicked and I was making my time.
It was a rough standard. There's no way in hell I could make it now if I had such a hard time in my 30s.